yoshino_1985#
K. Yoshino and D. E. Freeman, “Absorption spectrum of xenon in the vacuum-ultraviolet region”, J. Opt. Soc. Am. B 2, 1268 (1985)
Source record · Catalogue · Review register
Source kind: measurement
Recorded technique: Photographic absorption spectroscopy of atomic xenon (below 1 mTorr, in the windowless spectrograph) from 922 to 1296 A with a 6.65-m normal-incidence vacuum spectrograph (McPherson 265) in the second order of a 1200 mm^-1 grating, 0.010 mm slit; background continua from helium (below 1070 A) and argon discharges; wavelengths calibrated against the CO fourth positive bands and Cu I and Cu II lines from a hollow cathode. The five odd J = 1 Rydberg series from the 5p6 1S0 ground level (‘224 lines are identified’, p. 1268; the tables hold 223 measured rows); the series limits from the Rydberg formula with a fitted quantum defect (Fig. 3).
Materials in structured entries: Xe
Dataset quantities: ionization_energy, level_energy
Contents: 7 datasets; 0 formulas.
Curation notes#
J. Opt. Soc. Am. B 2(8), 1268-1274 (August 1985) = PDF pages 1-7 (journal page = PDF page + 1267); a scan with a text layer. Identity checked against the first page (journal, volume, number, date, page, title, authors). Wavelengths are in vacuum (the VUV; the printed wave numbers are 1e8 over them, checked for every row by the script).
ABSORPTION: no cross section, oscillator strength or absorption coefficient is printed. Fig. 1 reproduces the photographic plates and Fig. 2 densitometer traces near 925 A (relative, the ns’ and nd’ autoionising lines; raster): no absolute scale, not digitised. The paper’s own references for xenon absorption coefficients in this region (R. E. Huffman, Y. Tanaka and J. C. Larrabee, J. Chem. Phys. 39, 902 (1963); P. H. Metzger and G. R. Cook, J. Opt. Soc. Am. 55, 516 (1965); F. M. Matsunaga, R. S. Jackson and K. Watanabe, J. Quant. Spectrosc. Radiat. Transfer 5, 329 (1965)) are not in the library.
WHAT IS TAKEN (tools/extract/yoshino_1985.py). The five series tables, each row n, the wavelength (A), the wave number (cm^-1) and n*: the wave number of an absorption line from the ground level is the energy of its upper level, so each table is a level_energy dataset (cm^-1), rows by n, x the level in NIST’s notation: Table 1 (p. 1270) 5p5(2P3/2) nd 2[3/2]1, n = 5-66; Table 2 (p. 1270) nd 2[1/2]1, n = 5-34; Table 3 (p. 1271) ns 2[3/2]1, n = 7-47; Table 4 (p. 1271) 5p5(2P1/2) nd’ 2[3/2]1, n = 5-65; Table 5 (p. 1272) ns’ 2[1/2]1, n = 6-39. Tables 4 and 5 above the first limit (nd’ n >= 6, ns’ n >= 8) are the autoionising resonances between the 2P3/2 and 2P1/2 limits (12.13-13.44 eV), the region two photons of 6.065-6.718 eV (184.6-204.4 nm, vacuum) reach; they are odd J = 1 levels, reached by one photon (two photons from the ground level reach even J = 0 and 2). Rows in parentheses are ‘estimated wavelengths ... calculated from the quantum defects’ (p. 1269), not measurements: ns n = 22 (blended with Lyman beta), nd’ n = 6, 7 and ns’ n = 8, 9 (‘so diffuse that we could not make measurements’); kept in the files and excluded. The series limits, from the text, as inline points: 97 833.75 +- 0.05 cm^-1 (2P3/2, ‘12.12994 +- 0.00001 eV’) and 108 370.8 +- 0.2 cm^-1 (2P1/2, ‘13.43637 +- 0.00002 eV’) (p. 1271); the abstract rounds the first to 97 833.7, as Table 7 does (p. 1273).
ACCURACY. ‘The final accuracy of measurements for each line was estimated to be better than 0.002 A’ (p. 1268); ‘the experimental error of 0.2 cm^-1 in the line measurements’ (p. 1271); ‘For the absolute accuracy, we can safely claim 0.2 cm^-1’ and the relative accuracy is 0.1 cm^-1 from the comparison with Humphreys and Paul (p. 1273), with the laser measurements of the companion paper (Bonin, McIlrath and Yoshino, J. Opt. Soc. Am. B 2, 1275 (1985); not in the library): 12 lines, mean difference -0.017 +- 0.15 cm^-1. Taken as 0.2 cm^-1, level not stated. The diffuse nd’ lines n = 8-13 (Table 4) print wavelengths to 0.01 A and wave numbers to 1 cm^-1, and are less precise than that (0.01 A is 1.1 cm^-1 there).
CHECKED (the script). Every row’s wave number against 1e8 over its wavelength, and its n* against the Rydberg formula with the paper’s limits and xenon’s mass-corrected Rydberg constant (109 736.857 cm^-1), within the printed rounding; the four-decimal n* of the lowest members reproduce to 1-2 units of the last digit (the authors’ R and rounding are not stated). Six wave numbers fail both and are corrected by errata below; two wavelengths and one n* are misprinted with the wave number right (Table 1 n = 14 prints 1030.453 A for 1030.435; Table 5 n = 12 prints ‘3937.650’ for 937.650; Table 4 n = 23 prints n* = 20.74 for 20.72, its neighbours 19.72 and 21.72): not in a value column, so not errata. Against NIST (data/external/nist_asd/Xe_I_levels.tsv, n <= 20): 28 levels NIST cites by the bibliographic key L6449 are this paper’s values to every printed digit (including the corrected 11s’ and 11d’); the other NIST levels differ by -0.26 to +0.23 cm^-1. All table cells were checked against the table images; the misprinted cells also on the rendered pages. The limits: 97 833.75 / 8065.479 (CODATA 1973, cm^-1 per eV) = 12.129937 eV and 108 370.8 / 8065.479 = 13.436375 eV, as printed; NIST’s first ionisation energy (nist_asd_2026 ie_Xe_I, 12.1298437 eV) is 97 833.787 cm^-1, 0.037 above this paper’s (within its +-0.05); the interval, 10 537.05 cm^-1 (Table 7 prints 10 537.1), against NIST’s 2P1/2 level of Xe II (nist_asd_2026 level_Xe+_2P12) 10 537.01.
NOT TAKEN. Table 6 (p. 1272): Humphreys and Paul’s interferometric term values (HP-70) of 14 levels with the differences of NBS-58, Petersson and this work, and ‘reevaluated’ term values = HP-70 - 0.4754 cm^-1 (the mean present - HP difference, +- 0.0926): others’ values shifted, reproduced or derived. Table 7: the limits again, rounded, with NBS 1958 and 1970 and Edlén’s interval, reproduced. Fig. 3 (the limit against the assumed quantum defect): not a quantity.
FURTHER TWO-PHOTON DATA CITED: none.
Recorded bibliographic identity status: VALIDATED_WITH_WARNINGS. This concerns identification of the source; it does not establish the scientific correctness of its contents.
Datasets#
yoshino_1985/levels_nd32#
{
"id": "levels_nd32",
"material": "Xe",
"file": "Xe/yoshino_1985__levels_nd32.csv",
"table": "tbl_fc5223dd7155",
"quantity": "level_energy",
"unit": "cm-1",
"abscissa": "label",
"use": "primary",
"uncertainty": {
"absolute": 0.2,
"level": "not stated"
},
"parameters": {
"configuration": "5p5.(2P*<3/2>).nd, n the row",
"term": "2[3/2]*",
"j": "1"
}
}
Table 1 (p. 1270), 5p5 nd[3/2]1 - 5p6 1S0, n = 5-66. Rows by n; x the level; the value the printed wave number of the line from the ground level (vacuum), its digit-group spaces removed. Uncertainty 0.2 cm^-1, the paper’s absolute accuracy (record notes).
yoshino_1985/levels_nd12#
{
"id": "levels_nd12",
"material": "Xe",
"file": "Xe/yoshino_1985__levels_nd12.csv",
"table": "tbl_8f0a90e1d919",
"quantity": "level_energy",
"unit": "cm-1",
"abscissa": "label",
"use": "primary",
"uncertainty": {
"absolute": 0.2,
"level": "not stated"
},
"parameters": {
"configuration": "5p5.(2P*<3/2>).nd, n the row",
"term": "2[1/2]*",
"j": "1"
}
}
Table 2 (p. 1270), 5p5 nd[1/2]1 - 5p6 1S0, n = 5-34. Rows by n; x the level; the value the printed wave number of the line from the ground level (vacuum), its digit-group spaces removed. Uncertainty 0.2 cm^-1, the paper’s absolute accuracy (record notes).
yoshino_1985/levels_ns32#
{
"id": "levels_ns32",
"material": "Xe",
"file": "Xe/yoshino_1985__levels_ns32.csv",
"table": "tbl_0c56a9f6ed72",
"quantity": "level_energy",
"unit": "cm-1",
"abscissa": "label",
"use": "primary",
"excluded_rows": {
"22": "printed in parentheses: the position calculated from the quantum defect, the line being blended with Lyman beta of H I at 1025.722 A (p. 1269); not a measurement"
},
"uncertainty": {
"absolute": 0.2,
"level": "not stated"
},
"parameters": {
"configuration": "5p5.(2P*<3/2>).ns, n the row",
"term": "2[3/2]*",
"j": "1"
}
}
Table 3 (p. 1271), 5p5 ns[3/2]1 - 5p6 1S0, n = 7-47 (the 6s resonance line, 1469.612 A, was not measured). Rows by n; x the level; the value the printed wave number of the line from the ground level (vacuum), its digit-group spaces removed. Uncertainty 0.2 cm^-1, the paper’s absolute accuracy (record notes).
yoshino_1985/levels_ndp32#
{
"id": "levels_ndp32",
"material": "Xe",
"file": "Xe/yoshino_1985__levels_ndp32.csv",
"table": "tbl_60d55d81bd56",
"quantity": "level_energy",
"unit": "cm-1",
"abscissa": "label",
"use": "primary",
"excluded_rows": {
"6": "printed in parentheses: estimated from the quantum defect, the line too diffuse to measure (p. 1269)",
"7": "printed in parentheses: estimated from the quantum defect, the line too diffuse to measure (p. 1269)"
},
"uncertainty": {
"absolute": 0.2,
"level": "not stated"
},
"parameters": {
"configuration": "5p5.(2P*<1/2>).nd, n the row",
"term": "2[3/2]*",
"j": "1"
}
}
Table 4 (p. 1271), 5p5 nd’[3/2]1 - 5p6 1S0, n = 5-65; autoionising for n >= 6. Rows n = 8-13 print wave numbers to 1 cm^-1 (diffuse lines; record notes). Rows by n; x the level; the value the printed wave number of the line from the ground level (vacuum), its digit-group spaces removed. Uncertainty 0.2 cm^-1, the paper’s absolute accuracy (record notes).
yoshino_1985/levels_nsp12#
{
"id": "levels_nsp12",
"material": "Xe",
"file": "Xe/yoshino_1985__levels_nsp12.csv",
"table": "tbl_ca7c8f0fa582",
"quantity": "level_energy",
"unit": "cm-1",
"abscissa": "label",
"use": "primary",
"excluded_rows": {
"8": "printed in parentheses: estimated from the quantum defect, not measured (p. 1269)",
"9": "printed in parentheses: estimated from the quantum defect, not measured (p. 1269)"
},
"uncertainty": {
"absolute": 0.2,
"level": "not stated"
},
"parameters": {
"configuration": "5p5.(2P*<1/2>).ns, n the row",
"term": "2[1/2]*",
"j": "1"
}
}
Table 5 (p. 1272), 5p5 ns’[1/2]1 - 5p6 1S0, n = 6-39; autoionising for n >= 8. Rows by n; x the level; the value the printed wave number of the line from the ground level (vacuum), its digit-group spaces removed. Uncertainty 0.2 cm^-1, the paper’s absolute accuracy (record notes).
yoshino_1985/limit_2P32#
{
"id": "limit_2P32",
"material": "Xe",
"table": "text",
"quantity": "ionization_energy",
"unit": "cm-1",
"abscissa": "label",
"use": "primary",
"uncertainty": {
"column": true,
"level": "not stated"
},
"parameters": {
"kind": "adiabatic",
"final_state": "5p5 2P*<3/2> (the Xe II ground level)"
}
}
1 inline points in the source record.
p. 1271: the first ionisation limit ‘was found to be 97 833.75 +- 0.05 cm^-1 (or 12.12994 +- 0.00001 eV)’, from the nd[3/2]1 series, m = 25-36 and 45-61, with a = 0.79 in T = T_obs + R / (m + a)^2 (Eq. 1). The abstract and Table 7 round it to 97 833.7. Level not stated.
yoshino_1985/limit_2P12#
{
"id": "limit_2P12",
"material": "Xe",
"table": "text",
"quantity": "ionization_energy",
"unit": "cm-1",
"abscissa": "label",
"use": "primary",
"uncertainty": {
"column": true,
"level": "not stated"
},
"parameters": {
"kind": "adiabatic",
"final_state": "5p5 2P*<1/2> (the excited fine-structure level of Xe II)"
}
}
1 inline points in the source record.
p. 1271: the second ionisation limit ‘was found to be 108 370.8 +- 0.2 cm^-1 (or 13.43637 +- 0.00002 eV)’, from the nd’[3/2]1 series, n = 52-65, with a = 0.72. The ionisation energy to the excited 2P1/2 level of the ion, not the first ionisation energy. Level not stated.
Formulas#
No formulas are recorded.
Corrections#
[
{
"dataset": "levels_nd12",
"row": "10",
"column": "value",
"printed": "95912.98",
"corrected": "95912.87",
"reason": "Table 2, nd[1/2] n = 10: the printed 95 912.98 cm^-1 is not 1e8 / 1042.613 A = 95 912.87, and gives n* = 7.5586 against the printed 7.5583, which 95 912.87 reproduces.",
"evidence": "The row's own wavelength and n* (script checks); NIST's 5p5(2P3/2) 10d 2[1/2]1, 95 912.880 cm^-1 (another source, key L3466). Table image and rendered page show 95 912.98."
},
{
"dataset": "levels_nd12",
"row": "31",
"column": "value",
"printed": "97798.4",
"corrected": "97698.4",
"reason": "Table 2, nd[1/2] n = 31: 97 798.4 cm^-1 lies above the series limit (97 833.75 is 35 cm^-1 higher, n* would be 56) and out of order (n = 30 is 97 688.8, n = 32 97 707.5); 1e8 / 1023.558 A = 97 698.42 and gives n* = 28.47 as printed: a 7 misprinted for a 6.",
"evidence": "The row's own wavelength and n*, and the series order (script checks). Beyond NIST's list (n <= 20). Table image shows 97 798.4."
},
{
"dataset": "levels_ns32",
"row": "10",
"column": "value",
"printed": "94487.09",
"corrected": "94787.09",
"reason": "Table 3, ns[3/2] n = 10: 94 487.09 cm^-1 is not 1e8 / 1054.996 A = 94 787.09, which reproduces the printed n* = 6.0016: a 4 misprinted for a 7.",
"evidence": "The row's own wavelength and n* (script checks); NIST's 5p5(2P3/2) 10s 2[3/2]1, 94 787.084 cm^-1 (key L763). Table image shows 94 487.09."
},
{
"dataset": "levels_ns32",
"row": "23",
"column": "value",
"printed": "97350.0",
"corrected": "97530.0",
"reason": "Table 3, ns[3/2] n = 23: 97 350.0 cm^-1 is out of order (n = 21 is 97 454.3, n = 24 97 559.5) and is not 1e8 / 1025.326 A = 97 529.96, which gives the printed n* = 19.01: two digits transposed.",
"evidence": "The row's own wavelength and n*, and the series order (script checks). Beyond NIST's list. Table image shows 97 350.0."
},
{
"dataset": "levels_ndp32",
"row": "11",
"column": "value",
"printed": "107209.",
"corrected": "106929.",
"reason": "Table 4, nd'[3/2] n = 11: the wave number repeats the next row's (n = 12, 107 209.); 1e8 / 935.20 A = 106 929.0, which gives the printed n* = 8.724.",
"evidence": "The row's own wavelength and n* (script checks); NIST's 5p5(2P1/2) 11d 2[3/2]1 is 106 929. cm^-1 with the key L6449 (this paper), i.e. NIST carries the corrected value. Table image shows 107 209. twice."
},
{
"dataset": "levels_nsp12",
"row": "11",
"column": "value",
"printed": "1061208",
"corrected": "106120.8",
"reason": "Table 5, ns'[1/2] n = 11: printed '106 120 8', the decimal point missing (rendered page and text layer agree); 1e8 / 942.322 A = 106 120.84, n* = 6.9837 as printed.",
"evidence": "The row's own wavelength and n* (script checks); NIST's 5p5(2P1/2) 11s 2[1/2]1 is 106 120.8 cm^-1 with the key L6449 (this paper). Rendered page p. 1272 checked."
}
]
Formula corrections, where recorded, appear with their formulas above. Curation notes may also discuss corrections or unresolved interpretation. Consult the review register for the checks and decisions.